Optical fiber fusion welding lower clamping and glue injection curing device and curing method

Abstract

The invention provides an optical fiber fusion lower clamping and glue injection curing device and curing method, the optical fiber fusion lower clamping and glue injection curing device comprises a transverse handle, a first clamping head, a second clamping head and a supporting block, the transverse handle extends along the horizontal arrangement direction, and the first clamping head and the second clamping head are respectively connected to two ends of the transverse handle based on the horizontal arrangement direction; the first clamping head is provided with a first clamping groove, the first clamping groove is used for clamping an end cap, the second clamping head is provided with a second clamping groove, the supporting block is provided with a supporting groove, the supporting groove extends in the horizontal arrangement direction, the supporting groove is used for containing a glass tube and an optical fiber, the second clamping groove clamps the supporting block, and the first clamping groove and the second clamping groove are both located vertically below the transverse handle. When the optical fiber and the end cap are welded, the optical fiber welding lower clamp is firstly used for fixing and assembling, and the glass tube is assembled in advance, so that when the optical fiber welding lower clamp is mounted on the fixed bracket, the integral lower clamp is utilized to ensure that the positions of the end cap, the glass tube and the optical fiber are relatively unchanged, and the vibration is reduced, thereby protecting the welding point.

Description

Technical Field

[0001] The invention relates to the field of optical fiber processing equipment, and in particular to an optical fiber fusion clamp, glue injection curing device and curing method. Background Art

[0002] Fiber end caps are high-power devices designed for processing the output end faces of high-power fiber lasers and fiber amplifiers. They reduce the optical power density at the output end by expanding the output light beam. The input end of the fiber end cap is generally fused with the optical fiber on a fusion splicer. After fusion, it needs to enter the next process. During the process of entering the next process, it is difficult to avoid the swing of the optical fiber, and it also needs to be inserted into a glass tube, which can easily cause the fusion point to be disconnected, thereby affecting the product yield. Summary of the invention

[0003] The first object of the present invention is to provide a fiber fusion clamp for stable and efficient connection.

[0004] The second object of the present invention is to provide a glue injection and curing device having the above-mentioned optical fiber fusion lower clamp.

[0005] The third object of the present invention is to provide a curing method for the above-mentioned glue injection curing device.

[0006] In order to achieve the first purpose of the present invention, the present invention provides an optical fiber fusion clamp for end cap fusion, comprising a horizontal handle, a first clamp, a second clamp and a support block, the horizontal handle extends along the horizontal arrangement direction, the first clamp and the second clamp are respectively connected to the two ends of the horizontal handle based on the horizontal arrangement direction; the first clamp is provided with a first clamping groove, the first clamping groove is used to clamp the end cap, the second clamp is provided with a second clamping groove, the support block is provided with a support groove, the support groove extends along the horizontal arrangement direction, the support groove is used to place the glass tube and the optical fiber, the second clamping groove clamps the support block, and the first clamping groove and the second clamping groove are both located vertically below the horizontal handle.

[0007] A further solution is that the support block is also provided with a fiber optic groove, which extends along the horizontal arrangement direction and is connected to the support groove, the diameter of the support groove is larger than the diameter of the fiber optic groove, the fiber optic groove is used to place the optical fiber, and the support groove is closer to the first clamping groove than the fiber optic groove.

[0008] A further solution is that the support block is provided with a stop surface between the optical fiber groove and the support groove, and the stop surface is perpendicular to the horizontal arrangement direction.

[0009] A further solution is that the first chuck includes a first elastic member, a first fixed arm and a first free arm, the first fixed arm is fixedly connected to the cross handle, the first free arm is hinged to the first fixed arm, the first elastic member is connected between the first fixed arm and the first free arm, and a first clamping groove is formed between the first fixed arm and the first free arm, and the second chuck includes a second elastic member, a second fixed arm and a second free arm, the second fixed arm is fixedly connected to the cross handle, the second free arm is hinged to the second fixed arm, the second elastic member is connected between the second fixed arm and the second free arm, and a second clamping groove is formed between the second fixed arm and the second free arm.

[0010] In order to achieve the second purpose of the present invention, the present invention provides a glue injection and curing device, comprising a fiber fusion lower clamp, a fixed bracket and a sliding bracket as described above; the sliding bracket can be movably arranged on the fixed bracket along the horizontal arrangement direction, and the fixed bracket is provided with a first fixed clamping groove at the moving end of the sliding bracket, the first fixed clamping groove extends along the horizontal arrangement direction and is connected with the first clamping groove, and the first fixed clamping groove is used to clamp the end cap; the sliding bracket is provided with a second fixed clamping groove and a positioning groove extending along the horizontal arrangement direction, the second fixed clamping groove is connected with the positioning groove, the second fixed clamping groove is closer to the first clamping groove than the positioning groove, the support block is located in the positioning groove, the second fixed clamping groove is used to clamp the glass tube, and the sliding bracket can move toward the first clamping groove.

[0011] A further solution is that the glue injection and curing device also includes an ultraviolet light device, and the ultraviolet light device is used to irradiate toward the first clamping groove.

[0012] A further solution is that the glue injection and curing device also includes a beam quality analyzer, and the beam quality analyzer is located on the outer side of the first fixed clamping groove based on the horizontal arrangement direction.

[0013] A further solution is that the glue injection and curing device also includes a transverse plate, which extends along the horizontal arrangement direction and is fixedly connected to the fixed bracket, the first fixed clamping groove is arranged at the end of the transverse plate based on the horizontal arrangement direction, and the sliding bracket is connected to the transverse plate and can move along the transverse plate.

[0014] A further solution is that the fixing bracket is provided with a fiberboard at the other end of the first fixing clamping groove based on the horizontal arrangement direction.

[0015] In order to achieve the third object of the present invention, the present invention provides a curing method for the glue injection curing device applied to the above scheme, and the curing method comprises: Take out the optical fiber fusion clamp, the first clamping groove clamps the end cap, the supporting groove is placed with a glass tube and an optical fiber, the optical fiber passes through the glass tube, and the end of the optical fiber is fused with the input end of the end cap; The optical fiber fusion clamp is installed on the fixed bracket, the first fixed clamping groove clamps the end cap, the support block is assembled in the positioning groove, and the second fixed clamping groove clamps the glass tube; The sliding bracket moves toward the end cap, and the glass tube and the end cap are glued and cured.

[0016] The beneficial effect of the present invention is that, by adopting a unified fiber fusion lower clamp, when the optical fiber and the end cap are fused, the fiber fusion lower clamp is first used for fixing and assembling, and the glass tube is pre-assembled. Therefore, when the fiber fusion lower clamp is installed on the fixed bracket, the integral lower clamp is used to ensure that the positions of the end cap, the glass tube and the optical fiber remain relatively unchanged, and the vibration is also reduced, thereby protecting the fusion point. When assembled to the fixed bracket, the end cap is clamped and positioned by the first fixed clamping groove, and the support block is positioned in the positioning groove, and then the position of the lower clamp is fixed, and then the glass tube is clamped by the second fixed clamping groove, and the glass tube is driven by the moving sliding bracket, and the clamping and fixing of the optical fiber tail is coordinated, so that the glass tube and the end cap can be stably glued and cured while reducing the vibration of the fusion point, thereby improving the assembly efficiency and the product yield. Furthermore, the movable clamp can facilitate the assembly of the device, and the optical fiber groove can be used to stably assemble the optical fiber. In addition, the setting of the ultraviolet light device and the beam quality analyzer can improve the efficiency and quality of the dispensing fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment of a glue injection and curing device of the present invention.

[0018] Figure 2 It is an exploded view of an embodiment of the glue injection and curing device of the present invention.

[0019] Figure 3 It is a structural diagram of an embodiment of the optical fiber fusion clamp of the present invention.

[0020] Figure 4 It is a structural diagram of an embodiment of the optical fiber fusion clamp of the present invention from another viewing angle.

[0021] Figure 5 It is a structural diagram of a fixed bracket in an embodiment of a glue injection and curing device of the present invention.

[0022] Figure 6 It is a structural diagram of the glue injection and curing device embodiment of the present invention when the lower clamp is assembled.

[0023] Figure 7 It is a structural diagram of the embodiment of the glue injection and curing device of the present invention when fixing the glass tube.

[0024] Figure 8 It is a structural diagram of the embodiment of the glue injection and curing device of the present invention when the glass tube is hinged.

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0026] Reference Figures 1 to 8The glue injection and curing device 2 includes a fiber fusion lower clamp 1, a fixed bracket 21 and a sliding bracket 24. The fiber fusion lower clamp 1 includes a horizontal handle 11, a first clamp 12, a second clamp 13 and a support block 14. The horizontal handle 11 extends along the horizontal arrangement direction X. The first clamp 12 and the second clamp 13 are respectively connected to the two ends of the horizontal handle 11 based on the horizontal arrangement direction X. The first clamp 12 is provided with a first clamping groove 123. Specifically, the first clamp 12 includes a first elastic member 124, a first fixed arm 121 and a first free arm 122. The first fixed arm 121 is fixedly connected to the horizontal handle 11, and the first free arm 122 is hinged to the first fixed arm 121. The first elastic member 124 is connected between the first fixed arm 121 and the first free arm 122. A first clamping groove 123 is formed between the first fixed arm 121 and the first free arm 122. The first clamping groove 123 is used to clamp the end cap 101.

[0027] The second clamp 13 is provided with a second clamping groove 133. Specifically, the second clamp 13 includes a second elastic member 134, a second fixed arm 131 and a second free arm 132. The second fixed arm 131 is fixedly connected to the cross handle 11, and the second free arm 132 is hinged to the second fixed arm 131. The second elastic member 134 is connected between the second fixed arm 131 and the second free arm 132. A second clamping groove 133 is formed between the second fixed arm 131 and the second free arm 132. The second clamping groove 133 is used to clamp the support block 14.

[0028] The support block 14 extends along the horizontal arrangement direction X. The support block 14 is provided with a support groove 141 and an optical fiber groove 142. Both the support groove 141 and the optical fiber groove 142 extend along the horizontal arrangement direction X. The optical fiber groove 142 is used to place the optical fiber 103. The support groove 141 is used to place the glass tube 104, and the optical fiber 103 passes through the glass tube 104. The optical fiber groove 142 extends along the horizontal arrangement direction X and is connected with the support groove 141. The diameter of the support groove 141 is greater than the diameter of the optical fiber groove 142. The support groove 141 is closer to the first clamping groove 123 than the optical fiber groove 142. The support block 14 is provided with a stop surface 143 between the optical fiber groove 142 and the support groove 141. The stop surface 143 is perpendicular to the horizontal arrangement direction X. The first clamping groove 123 and the second clamping groove 133 are both located vertically below the horizontal handle 11, and then the glass tube 104, the optical fiber 103 and the end cap 101 are all located vertically below the horizontal handle 11.

[0029] The fixed bracket 21 is arranged horizontally, and the glue injection curing device 2 also includes a transverse plate 22, which extends along the horizontal arrangement direction X and is fixedly connected to the fixed bracket 21. The transverse plate 22 is provided with a fixed block 211 at the end of the horizontal arrangement direction X, and the fixed block 211 is provided with a first fixed clamping groove 212, which extends along the horizontal arrangement direction X. A clamping cover 213 is provided above the first fixed clamping groove 212. The sliding bracket 24 is connected to the transverse plate 22 and can move along the transverse plate 22. The first fixed clamping groove 212 is located at the moving end of the sliding bracket 24. When the optical fiber fusion clamp 1 is installed on the fixed bracket 21, the first fixed clamping groove 212 is connected to the first clamping groove 123, and the first fixed clamping groove 212 is located on the outside of the first clamping groove 123 based on the horizontal arrangement direction. The first fixed clamping groove 212 is used to clamp the end cap 101.

[0030] The sliding bracket 24 is provided with a second fixed clamping groove 241 and a positioning groove 243 extending along the horizontal arrangement direction X. The second fixed clamping groove 241 and the positioning groove 243 are connected. A clamping cover 242 is provided on the second fixed clamping groove 241. The second fixed clamping groove 241 is closer to the first clamping groove 123 than the positioning groove 243. The support block 14 is located in the positioning groove 243. The second fixed clamping groove 241 is used to clamp the glass tube 104. The sliding bracket 24 can move toward the first clamping groove 123.

[0031] The glue injection curing device 2 also includes a plurality of ultraviolet light devices 25 and a beam quality analyzer 31. The ultraviolet light devices 25 are respectively arranged on both sides of the fixed bracket 21. The ultraviolet light devices 25 can be adjusted in position by a guide rail along the horizontal arrangement direction X. The ultraviolet light devices 25 are used to irradiate toward the first clamping groove 123. The beam quality analyzer 31 is located on the outer side of the first fixed clamping groove 212 based on the horizontal arrangement direction X. The beam quality analyzer 31 can move along the horizontal arrangement direction X by sliding the slide rail 32, and then adjust the position of the received light beam. The fixed bracket 21 is provided with a fiber clamping plate 23 at the other end opposite to the first fixed clamping groove 212 based on the horizontal arrangement direction. The fiber clamping plate 23 is used to clamp the pigtail part of the optical fiber.

[0032] The curing method applied to the above-mentioned glue injection curing device 2 includes the following steps: taking out the optical fiber fusion clamp 1, before which the first clamping groove 123 clamps the end cap 101, the second clamping groove 133 clamps the support block 14, the support groove 141 is provided with a glass tube 104 and an optical fiber, the optical fiber passes through the glass tube 104, and the end of the optical fiber is fused with the input end of the end cap 101 at the fusion position 102 through a fiber fusion machine.

[0033] Reference Figure 6Then, the optical fiber fusion clamp 1 is installed on the fixed bracket 21, wherein the end cap 101 is placed in the first fixed clamping groove 212 and clamped by the clamping cover 213, and the support block 14 is assembled in the positioning groove 243. Figure 7 If the glass tube 104 is shorter, the glass tube 104 can be pushed into the second fixed clamping groove 241 and clamped by the clamping cover 242. If the glass tube is longer, the clamping cover 242 can be opened and inserted, and then the second fixed clamping groove 241 can also clamp the glass tube 104.

[0034] Reference Figure 8 Then, the sliding bracket 24 moves toward the end cap 101 and cooperates with the beam quality analyzer 31, and then the glass tube 104 and the end cap 101 can be glued and cured by dispensing glue and irradiation with an ultraviolet light device.

[0035] As can be seen from the above, when the optical fiber and the end cap are fused, the optical fiber fusion clamp is first used to fix the assembly, and the glass tube is pre-assembled. Therefore, when the optical fiber fusion clamp is installed on the fixed bracket, the integral clamp is used to ensure that the positions of the end cap, the glass tube and the optical fiber remain relatively unchanged, and the vibration is reduced, thereby protecting the fusion point.

Claims

1. An optical fiber fusion clamp for end cap fusion, characterized in that: It comprises a horizontal handle, a first clamp, a second clamp and a support block, wherein the horizontal handle extends along a horizontal arrangement direction, and the first clamp and the second clamp are respectively connected to two ends of the horizontal handle based on the horizontal arrangement direction; The first clamping head is provided with a first clamping groove, and the first clamping groove is used to clamp the end cap. The second clamping head is provided with a second clamping groove. The support block is provided with a support groove, and the support groove extends along the horizontal arrangement direction. The support groove is used to place the glass tube and the optical fiber. The second clamping groove clamps the support block. The first clamping groove and the second clamping groove are both located vertically below the cross handle.

2. The optical fiber fusion clamp according to claim 1, characterized in that: The support block is also provided with a fiber optic groove, which extends along the horizontal arrangement direction and is connected to the support groove, the diameter of the support groove is larger than the diameter of the fiber optic groove, the fiber optic groove is used to place the optical fiber, and the support groove is closer to the first clamping groove than the fiber optic groove.

3. The optical fiber fusion clamp according to claim 2, characterized in that: The support block is provided with a stop surface between the optical fiber groove and the support groove, and the stop surface is perpendicular to the horizontal arrangement direction.

4. The optical fiber fusion splicing lower clamp according to any one of claims 1 to 3, characterized in that: The first clamping head comprises a first elastic member, a first fixed arm and a first free arm, the first fixed arm is fixedly connected to the cross handle, the first free arm is hinged to the first fixed arm, the first elastic member is connected between the first fixed arm and the first free arm, and the first clamping groove is formed between the first fixed arm and the first free arm; The second clamp includes a second elastic member, a second fixed arm and a second free arm, the second fixed arm is fixedly connected to the cross handle, the second free arm is hinged to the second fixed arm, the second elastic member is connected between the second fixed arm and the second free arm, and the second clamping groove is formed between the second fixed arm and the second free arm.

5. Glue injection and curing device, characterized in that: It comprises the optical fiber fusion clamp, fixed bracket and sliding bracket as described in any one of claims 1 to 4 above; The sliding bracket is movably arranged on the fixed bracket along the horizontal arrangement direction, and the fixed bracket is provided with a first fixed clamping groove at the moving end of the sliding bracket, the first fixed clamping groove extends along the horizontal arrangement direction and is connected to the first clamping groove, and the first fixed clamping groove is used to clamp the end cap; The sliding bracket is provided with a second fixed clamping groove and a positioning groove extending in a horizontal arrangement direction, the second fixed clamping groove is connected to the positioning groove, the second fixed clamping groove is closer to the first clamping groove than the positioning groove, the support block is located in the positioning groove, the second fixed clamping groove is used to clamp the glass tube, and the sliding bracket can move toward the first clamping groove.

6. The glue injection and curing device according to claim 5, characterized in that: The glue injection and curing device also includes an ultraviolet light device, and the ultraviolet light device is used to irradiate toward the first clamping groove.

7. The glue injection and curing device according to claim 6, characterized in that: The glue injection and curing device also includes a beam quality analyzer, which is located on the outer side of the first fixed clamping groove based on the horizontal arrangement direction.

8. The glue injection and curing device according to claim 6, characterized in that: The fixing bracket is provided with a fiberboard on the other end of the first fixing clamping groove based on the horizontal arrangement direction.

9. The glue injection and curing device according to any one of claims 5 to 8, characterized in that: The glue injection and curing device also includes a transverse plate, which extends along the horizontal arrangement direction and is fixedly connected to the fixed bracket. The first fixed clamping groove is arranged at the end of the transverse plate based on the horizontal arrangement direction. The sliding bracket is connected to the transverse plate and can move along the transverse plate.

10. The curing method applied to the glue injection curing device according to any one of claims 5 to 9, characterized in that: The curing method comprises: The optical fiber fusion lower clamp is taken out, the first clamping groove clamps an end cap, the support groove is provided with a glass tube and an optical fiber, the optical fiber passes through the glass tube, and the end of the optical fiber is fused with the input end of the end cap; The optical fiber fusion clamp is installed on the fixed bracket, the first fixed clamping groove clamps the end cap, the support block is assembled in the positioning groove, and the second fixed clamping groove clamps the glass tube; The sliding bracket moves toward the end cap, and the glass tube is glued and cured to the end cap.

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